I don't see why not. I understand why you may have been hesitant previously, because it is your reputation on the line. But the way you explain your plan, with it being people you know, and from the sounds of it, these people will bring great diversity and specialist interest to the audience here at Steemit. So my vote is a yes.

And your plan regarding the exchange of Steem for their efforts sounds right too. If it helps lead to long term stability for Steemit, even better.